Related Clues:
- Sounds from a hot tub
- Satisfied sounds
- Signs of comprehension
- Expressions of pain relief
- Rubdown sounds, perhaps
- Cries at fireworks
- Sighs of pleasure
- Sounds at a masseur's
- Starts of sneezes
- Sounds during doctor's exams
- Satisfied sighs
- Spa sounds
- Hums like an engine
- Utterances of pain relief, etc.
- Physical sounds